Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
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Ql60 Down The Hole Hammer Mining Machinery Water Well Drilling Tools
Product description
Working of DTH In DTH drilling, the percussion mechanism commonly called the hammer is located directly behind the drill bit. The drill pipes transmit the necessary feed force and rotation to hammer and bit plus compressed air or fluids for the hammer and flushing of cuttings.The drill pipes are added to the drill string successively behind the hammer as the hole gets deeper.The piston strikes the impact surface of the bit directly, while the hammer casing gives straight and stable guidance of the drill bit.
Product Advantages:
1. Valveless operation to maximize energy output, provide efficient air utilitzation and reduce service requirements
2. Extra air-flow system allows for better hole cleaning in troublesome holes
3. All critical internal components are heat treatedunder strict control to maximize tool longevity
4. An overall cost-effective and user-friendly tool for use in the most demanding conditions
DTH Hammer specification:
| QL60 | |
| Length(less bit) | 1212mm |
| Weight (less bit) | 95kg |
| External diameter | 148mm |
| Bits shank | QL60 |
| Bits diameter | 152-203mm 6" - 8" |
| Connection thread | API 3 1/2''REG |
| Air pressure | 1.0-2.5Mpa |
Face shape Features
Drop Center
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
Concave Face
The all-round application bit face special for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
Flat Face
This kind of face shape is suitable for very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
Product application
At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering.
DTH is one of the most efficient ways of drilling rock, using a rapid hammer action to break the rock into sizeable chips which are then evacuated from the bore hole by the air exhausted from the DTH Hammer. The technique provides fast drilling of accurately aligned, straight and clean holes in most ground conditions.
Company informaiton
At sollroc, customer satisfaction is our top priority. Our sales team takes a proactive approach in meeting customers’ needs. We take the time to get to know you and learn about your operations so we can better assist you. We strive to meet customers’ needs by supplying the tools and equipment you need when you need them, providing product support, and following through with excellent customer service every step of the way.